CSC 480 Lab #1

"Hello, world" Lab

	Introduction to the Logic Designer 2 (LD-2) breadbox
	Introduction to logic design

Pin layouts for these chips are attached.

You must use the LD-2 in a safe manner. Use the following rules:

When starting, plug the power supply into the LD-2, but not into the outlet.
LD-2 should always be unplugged when you are building your circuits.
Make sure the LD-2 power switch is off before plugging into the outlet.
Double-check all power/ground connections before turning on the LD-2.
Turn the LD-2 on; test your circuit; turn it off.
If you ever turn your unit on and it smokes or smells bad, then immediately turn it off and let me look at it.
Unplug the LD-2 power supply from the outlet before making changes.
Rinse and repeat.

There are two common ways of damaging chips:

	Frying your chip can occur if you wire power and ground incorrectly. Use +5 volts for power on our chips.
	Breaking the connecting legs of the chip can happen when inserting or removing chips. Firm, even pressure should be used to insert chips. If you are having a difficult time, then pull the chip out and try again. Always remove chips with a tongs to avoid twisting them.

When you are done with lab, please return your LD-2 and wires to the cabinet.

Piece of cake.

Write down the truth table for an INVERTER. Use the LD-2 to verify this behavior with an INVERTER chip.
Write down the truth table for a 2-input OR gate. Verify this with a OR chip.
Write down the truth table for a 2-input NAND gate. Verify this with a NAND chip.
Write down the truth table for a 2-input AND gate. Create a circuit that implements this function with a NAND gate and an INVERTER. Verify your design.

The word "verify" above means to test your circuit for all possible input combinations using the switches on the LD-2.

Deliverable: For each step, show me your truth table and run your circuit.